path: root/include/asm-generic
diff options
authorMartin Schwidefsky <schwidefsky@de.ibm.com>2015-04-22 14:20:47 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2015-10-14 14:32:05 +0200
commita7b7617493179a0ff76cbc0cc2eb45ad07074765 (patch)
tree3e0fdcfc4aa11a5eb0115e439163187eab446ac6 /include/asm-generic
parent9d49f86daba3ed22cadf01beff1b130ad25fe0bf (diff)
mm: add architecture primitives for software dirty bit clearing
There are primitives to create and query the software dirty bits in a pte or pmd. But the clearing of the software dirty bits is done in common code with x86 specific page table functions. Add the missing architecture primitives to clear the software dirty bits to allow the feature to be used on non-x86 systems, e.g. the s390 architecture. Acked-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-generic')
1 files changed, 10 insertions, 0 deletions
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 29c57b2cb344..f167cdd80fd7 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -482,6 +482,16 @@ static inline pmd_t pmd_mksoft_dirty(pmd_t pmd)
return pmd;
+static inline pte_t pte_clear_soft_dirty(pte_t pte)
+ return pte;
+static inline pmd_t pmd_clear_soft_dirty(pmd_t pmd)
+ return pmd;
static inline pte_t pte_swp_mksoft_dirty(pte_t pte)
return pte;

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